Introduction
The given database is designed to support a car rental system.The car_id and customer_id columns in this table reference the 
corresponding identifiers in the Car and Customer tables respectively.The 
customer_id and car_id columns in this table reference the corresponding 
identifiers in the Customer and Car tables respectively.It includes 
the rental's unique identifier (rental_id), the car's identifier (car_id), the 
customer's identifier (customer_id), rental date, return date, and total cost of the 
rental.It includes the reservation's unique identifier (reservation_id), the 
customer's identifier (customer_id) who made the reservation, the car's 
identifier (car_id) reserved by the customer, and the reservation date.The database can be used to track car 
availability, customer information, rental history, employee details, and 
reservation records, enabling effective management and retrieval of data in a car 
rental business.The Car table holds details about the cars available for rental, such as the car's 
unique identifier (car_id), brand, model, manufacturing year, color, and rental 
rate.It 
includes details like the customer's unique identifier (customer_id), first name, 
last name, email address, and phone number.It includes details such as the employee's unique identifier 
(employee_id), first name, last name, email address, phone number, and hire 
date.These tables and their relationships provide a structured and efficient way to 
manage car rentals, customer information, rental details, employee data, and 
reservations within the car rental system.The Rental table contains records of car rentals made by customers.It consists of five 
tables: Car, Customer, Rental, Employee, and Reservation.These tables store 
information about cars, customers, rentals, employees, and reservations 
respectively.The Employee table holds information about the employees working in the car 
rental company.